Alkylpyridyl Quinolines as Nk3 Receptor Modulators

Abstract

Compounds of Formula Iwherein R1, A, R2, R3, R4, R5, n, m and p are as described in the specification, pharmaceutically-acceptable salts, methods of making, pharmaceutical compositions containing and methods for using the same.

Description

FIELD OF THE INVENTION[0001]This invention relates to alkylpyridyl quinoline derivatives, pharmaceutical compositions comprising them, and the use of such compounds in the treatment of central nervous system and peripheral diseases or disorders. This invention also relates to the use of such compounds in combination with one or more other CNS agents to potentiate the effects of the other CNS agents. The compounds of this invention are also useful as probes for the localization of cell surface receptors.BACKGROUND OF THE INVENTION[0002]Tachykinin receptors are the targets of a family of structurally related peptides which include substance P(SP), neurokinin A (NKA) and neurokinin B (NKB), collectively “tachykinins.” Tachykinins are synthesized in the central nervous system (CNS), and peripheral tissues, where they exert a variety of biological activities. Three tachykinin receptors are known which are named neurokinin-1 (NK-1), neurokinin-2 (NK-2) and neurokinin-3 (NK-3) receptors. N...

AI Technical Summary

Benefits of technology

[0101]Compounds of the present invention have the advantage that they may be more soluble, be more easily absorbed and more efficacious in vivo, produce fewer side effects, be less toxic, be more potent, more selective, be longer acting, be less metabolized and / or have a better pharmacokinetic profile than, or have other useful pharmacological or physicochemical properties over known compounds. Using assays for functional activity described herein, compounds of the invention will be found to have IC50's of less than about 1 μM for NK-3 receptors and many compounds will be found to have IC50's of less than about 100 nM for such receptors.

Problems solved by technology

Non-peptide ligands have been developed for each of the tachykinin receptors, however known non-peptide NK-3 receptor antagonists suffer from a number of problems such as species selectivity which limits the potential to evaluate these compounds in many appropriate disease models.

Images